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Notice the large size of the LED digits, which are among the biggest used on a hand-held calculator. By this late date the cost of LEDs had fallen considerably and large digits were cheaply available. They are further enhanced
by the magnifying lenses in front, a common feature. Compare the display on this Sinclair Enterprise with the Enterprise Programmable which has the usual size LED digits.
New Scientist Magazine reported[1]:
"Customers like them big and red
The large, red display (the
characters are nearly 6 mm high) on the latest Sinclair calculator may not look modern but the customers shoul be happy enough: both the display of the new "Enterprise" machine and the simplified keyboard are the result of
market research. The study found that users do not like liquid-crystal displays (LCDs), and have previously bought green displays in large quantities because they had bigger digits - everything being equal most buyers would
have preferred a red display. Most of those questioned eschewed even the prime advantage of LCDs - their long battery life - in favour of a brighter display."
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